Angular distribution of isothermal expansions of non-quasi-neutral plasmas into a vacuum

作者：Huang Yongsheng^*; Duan Xiaojiao; Shi Yijin; Lan Xiaofei; Tan Zhixin; Wang Naiyan; Tang Xiuzhang; He Yexi

来源：Applied Physics Letters, 2008, 92(14): 141502.

DOI：10.1063/1.2904639

A two dimensional planar model is developed for self-similar isothermal expansions of non-quasi-neutral plasmas into a vacuum of solid targets heated by ultraintense laser pulses. The angular ion distribution and the dependence of the maximum ion velocity on laser parameters and target thicknesses are predicted. Considering the self-generated magnetic field of plasma beams as a perturbation, the ion energy on edge at the ion opening angle has an increase of 2% relative to that on the front center. Therefore, the self-generated magnetic field of plasma beams is not large enough to interpret for the ring structures.

• 出版日期2008-4-7
• 单位清华大学; 中国原子能科学研究院